156 lines
3.8 KiB
Lua
156 lines
3.8 KiB
Lua
local utils = require('utils')
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local repr, stringify, min, max, equivalent, set, is_list, sum
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repr, stringify, min, max, equivalent, set, is_list, sum = utils.repr, utils.stringify, utils.min, utils.max, utils.equivalent, utils.set, utils.is_list, utils.sum
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local immutable = require('immutable')
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local insert, remove, concat
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do
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local _obj_0 = table
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insert, remove, concat = _obj_0.insert, _obj_0.remove, _obj_0.concat
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end
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local Lua, Nomsu, Source
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do
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local _obj_0 = require("code_obj")
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Lua, Nomsu, Source = _obj_0.Lua, _obj_0.Nomsu, _obj_0.Source
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end
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local MAX_LINE = 80
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local Types = { }
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Types.is_node = function(n)
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return type(n) == 'userdata' and getmetatable(n) and Types[n.type] == getmetatable(n)
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end
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local Tree
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Tree = function(name, fields, methods)
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methods = methods or { }
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local is_multi = true
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for _index_0 = 1, #fields do
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local f = fields[_index_0]
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is_multi = is_multi and (f ~= "value")
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end
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do
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methods.type = name
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methods.name = name
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methods.__new = methods.__new or function(self, source, ...)
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assert(source)
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if type(source) == 'string' then
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source = Source:from_string(source)
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end
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return source, ...
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end
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methods.is_multi = is_multi
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methods.map = function(self, fn)
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if type(fn) == 'table' then
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if not (next(fn)) then
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return self
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end
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local _replacements = fn
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fn = function(k)
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return _replacements[k]
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end
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end
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return self:_map(fn)
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end
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if is_multi then
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methods.__tostring = function(self)
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return tostring(self.name) .. "(" .. tostring(table.concat((function()
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local _accum_0 = { }
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local _len_0 = 1
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for _index_0 = 1, #self do
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local v = self[_index_0]
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_accum_0[_len_0] = repr(v)
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_len_0 = _len_0 + 1
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end
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return _accum_0
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end)(), ', ')) .. ")"
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end
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methods._map = function(self, fn)
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do
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local ret = fn(self)
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if ret then
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return ret
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end
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end
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local new_vals
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do
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local _accum_0 = { }
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local _len_0 = 1
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for _index_0 = 1, #self do
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local v = self[_index_0]
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_accum_0[_len_0] = v._map and v:_map(fn) or v
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_len_0 = _len_0 + 1
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end
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new_vals = _accum_0
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end
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local ret = getmetatable(self)(self.source, unpack(new_vals))
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return ret
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end
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else
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methods.__tostring = function(self)
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return tostring(self.name) .. "(" .. tostring(repr(self.value)) .. ")"
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end
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methods._map = function(self, fn)
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return fn(self) or self
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end
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end
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end
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Types[name] = immutable(fields, methods)
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end
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Tree("Block", {
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"source"
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})
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Tree("EscapedNomsu", {
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"source"
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})
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Tree("Text", {
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"source"
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})
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Tree("List", {
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"source"
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})
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Tree("Dict", {
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"source"
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})
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Tree("DictEntry", {
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"source"
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})
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Tree("IndexChain", {
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"source"
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})
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Tree("Number", {
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"source",
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"value"
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})
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Tree("Var", {
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"source",
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"value"
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})
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Tree("Action", {
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"source",
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"stub"
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}, {
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__new = function(self, source, ...)
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assert(source)
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if type(source) == 'string' then
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source = Source:from_string(source)
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end
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local stub_bits = { }
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for i = 1, select("#", ...) do
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local a = select(i, ...)
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stub_bits[i] = type(a) == 'string' and a or "%"
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end
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local stub = concat(stub_bits, " ")
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return source, stub, ...
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end,
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get_spec = function(self)
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return concat((function()
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local _accum_0 = { }
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local _len_0 = 1
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for _index_0 = 1, #self do
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local a = self[_index_0]
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_accum_0[_len_0] = type(a) == "string" and a or "%" .. tostring(a.value)
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_len_0 = _len_0 + 1
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end
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return _accum_0
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end)(), " ")
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end
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})
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return Types
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